121150014431 has 4 divisors (see below), whose sum is σ = 127526331000. Its totient is φ = 114773697864.

The previous prime is 121150014409. The next prime is 121150014439. The reversal of 121150014431 is 134410051121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121150014431 is a prime.

It is a super-2 number, since 2×121150014431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121150014397 and 121150014406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121150014439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3188158256 + ... + 3188158293.

It is an arithmetic number, because the mean of its divisors is an integer number (31881582750).

Almost surely, 2^121150014431 is an apocalyptic number.

121150014431 is a deficient number, since it is larger than the sum of its proper divisors (6376316569).

121150014431 is an equidigital number, since it uses as much as digits as its factorization.

121150014431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376316568.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 121150014431 its reverse (134410051121), we get a palindrome (255560065552).

The spelling of 121150014431 in words is "one hundred twenty-one billion, one hundred fifty million, fourteen thousand, four hundred thirty-one".